Risk factors of concurrent urinary sepsis in patients with diabetes mellitus comorbid with upper urinary tract calculi

Table 4 meaningful indicators were assigned

Factors	Assignment
Gender	Male = 0, female = 1
Age	≥ 60 yr = 1, < 60 yr = 0
History of lumbago and abdominal pain	Yes = 1, no = 0
Symptoms of urinary tract irritation	Yes = 1, no = 0
Operation time	≥ 60 yr = 1, < 60 yr = 0
U-LEU	- = 0, 1 + -3 + = 1
U-NIT	- = 0, + = 1
U-GLU	- = 0, 1 + -3 + = 1
Occurrence	Occurrence group = 1, nonoccurrence group = 0

U-LEU: Urinary leukocytes; U-NIT: Urinary nitrite; U-GLU: Urinary glucose.